Bending and punching draw-head plates



P. L. WEIMERl Bending and'Punching Drawhead Plates.

Patented Oct. 31, 1865.

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UNITED STATES PATENT OFFIGE.

PETER L. WEIMER, OF LEBANON, PENNSYLVANIA.

BENDING AND PUNCHING DRAW-HEAD PLATES.

Specification forming part of Letters Patent No. 50,756, dated October31, 1865.

Draw-Heads and Securing these Plates to their Frames; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, making a partof this specification, in which- Figure 1 is a perspective view of themachine. Fig. 2 is an elevation of one side of the machine. Fig.3 is anelevation of one end of the machine. Figs 4, 5, and 6, are views of thedraw-heads and the oval plates.

Similar letters of reference indicate corresponding parts in the severalfigures.

In-the specification of my application for a patent for a mode ofconstructingthe rectangular frames of the draw-heads of railroadcars Irefer to a machine which is intended for finishing these draw-heads byapplying the oval plates to the frames. I will now proceed to describethis machine in order'to enable others skilled in the art to fullyunderstand its construction and operation.

In the accompanying drawings, A represents the body of an anvil, whichis provided with a horn, A, and constructed with vertical sides, asshown in Figs. 1, 2, and 3. This anvil has a projection, B, on theopposite end to the horn, A, which projection is adapted for receivingupon its horizontal face an elliptical former, 0, having a curved facewhich conforms to the curvature of the oval plate 0, Figs. 4, 5,and 6.This elliptical former C is attached to the projection B by means of adovetail connection, as shown in Figs. 1 and 3, so that it can beremoved at pleasure, and yet when it is applied to the projection itwill be secure.

Directly over the plate 0 is a hinged bar, D, having two perforations,act, through it, which correspond to the holes a a through the ovalplate 0, and also with the holes which are made through a die-plate, b,on the former O. The free end of the hinged bar D is hinged to a loop,D, which drops down between the projections c 0, and receives through itandunder these projections a wedge-key, d, as shown in Figs. 1, 2, and3. By means of this arrangement the plates 0 are secured firmly upon theformer 0 previously to bending and punching them. The plates 0 arepunched by means of rectangular punches e e, Fig. l, which are driventhrough the holes a a of the hinged guide-bar D, and through verticalholes beneath the die-plate b, as indicated in Fig. 2. After punchingthe plates 0 they are beaten down upon the former O, and thus made toconform to its curved surface, as shown in Figs. 3 and 5.

On the front vertical side of the anvil A there is cast a concave shelf,Gr, having two mortises through it, as shown in Fig.1. After thesafety-pinsYare secured in theframes of the draw-heads these frames areready to receive the oval heads O,which are riveted to the open tenonends of the frames, as follows: The two tenon ends of the frame J areheated and the tenons inserted into the mortises in the shelf G anddriven down hard, so as to give the shoulders of the frame Which abutagainst the curved plate 0 the same curvature as this plate, thusallowing the said shoulders to fit snugly against the inside surface ofplate 0, as shown in Fig. 5. The ends of the frame J are again heated,and the closed end thereof placed upon the bed-piece L. The boltN, whichpasses transversely through the anvil A directly above this bed-piece L,is now used to secure the frame J in position, while the oval plate 0 isriveted to said frame. The bolt N is drawn tightly into its place bymeans of a wedge-key, Ii, (shown in Figs. 2 and 3.) This last operationcompletes the draw-heads, and they thus present the appearance shown inFigs. 4, 5, and 6.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The construction of the anvil-block A with a projection, B, incombination with the former O, and holding-down bar D, substantially asdescribed.

2. The curved-face mortised shelf G, applied to the anvil-blocksubstantially as described.

3. The bed-piece L and movable bolt N, applied to the anvil-block Asubstantially as described.

P. L. WEIMER.

Witesses: D. Mo. KARMANY, ANTHONY S. ELY.

